device team0 entered promiscuous mode device team_slave_0 entered promiscuous mode device team_slave_1 entered promiscuous mode 8021q: adding VLAN 0 to HW filter on device team0 IPVS: ftp: loaded support on port[0] = 21 INFO: task kworker/u4:3:198 blocked for more than 140 seconds. Not tainted 4.19.0-rc5-next-20180928+ #84 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/u4:3 D14064 198 2 0x80000000 Workqueue: netns cleanup_net Call Trace: context_switch kernel/sched/core.c:2830 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3479 schedule+0xfe/0x460 kernel/sched/core.c:3523 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3581 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0xbe7/0x1700 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 rtnl_lock+0x17/0x20 net/core/rtnetlink.c:77 tc_action_net_exit include/net/act_api.h:133 [inline] tunnel_key_exit_net+0x7d/0x450 net/sched/act_tunnel_key.c:580 ops_exit_list.isra.7+0x105/0x160 net/core/net_namespace.c:156 cleanup_net+0x555/0xb10 net/core/net_namespace.c:551 process_one_work+0xc8b/0x1b80 kernel/workqueue.c:2153 worker_thread+0x17f/0x1390 kernel/workqueue.c:2296 kthread+0x35a/0x440 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 INFO: task syz-executor2:12261 blocked for more than 140 seconds. Not tainted 4.19.0-rc5-next-20180928+ #84 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor2 D22968 12261 6117 0x00000004 Call Trace: context_switch kernel/sched/core.c:2830 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3479 schedule+0xfe/0x460 kernel/sched/core.c:3523 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3581 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0xbe7/0x1700 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 rtnl_lock+0x17/0x20 net/core/rtnetlink.c:77 tun_detach drivers/net/tun.c:742 [inline] tun_chr_close+0x3d/0x180 drivers/net/tun.c:3378 __fput+0x3bc/0xa70 fs/file_table.c:279 ____fput+0x15/0x20 fs/file_table.c:312 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop+0x318/0x380 arch/x86/entry/common.c:166 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x411051 Code: Bad RIP value. RSP: 002b:00007fffb0f6d3d0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000007 RCX: 0000000000411051 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006 RBP: 0000000000000000 R08: ffffffff8100b209 R09: 00000000328d98e0 R10: 00007fffb0f6d300 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000001 R14: 00000000000003ae R15: 0000000000000002 INFO: task syz-executor4:12290 blocked for more than 140 seconds. Not tainted 4.19.0-rc5-next-20180928+ #84 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor4 D22136 12290 6192 0x00000004 Call Trace: context_switch kernel/sched/core.c:2830 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3479 schedule+0xfe/0x460 kernel/sched/core.c:3523 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3581 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0xbe7/0x1700 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 rtnl_lock+0x17/0x20 net/core/rtnetlink.c:77 dev_ioctl+0x1a8/0xcc0 net/core/dev_ioctl.c:487 sock_do_ioctl+0x1f6/0x420 net/socket.c:974 sock_ioctl+0x313/0x690 net/socket.c:1075 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0x1de/0x1720 fs/ioctl.c:685 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:702 __do_sys_ioctl fs/ioctl.c:709 [inline] __se_sys_ioctl fs/ioctl.c:707 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:707 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457579 Code: Bad RIP value. RSP: 002b:00007fc7523fbc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457579 RDX: 00000000200003c0 RSI: 0000000000008914 RDI: 000000000000000a RBP: 000000000072c040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc7523fc6d4 R13: 00000000004c2251 R14: 00000000004d3240 R15: 00000000ffffffff INFO: task syz-executor4:12298 blocked for more than 140 seconds. Not tainted 4.19.0-rc5-next-20180928+ #84 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor4 D23472 12298 6192 0x00000004 Call Trace: context_switch kernel/sched/core.c:2830 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3479 schedule+0xfe/0x460 kernel/sched/core.c:3523 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3581 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0xbe7/0x1700 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 rtnl_lock+0x17/0x20 net/core/rtnetlink.c:77 dev_ioctl+0x1a8/0xcc0 net/core/dev_ioctl.c:487 sock_do_ioctl+0x1f6/0x420 net/socket.c:974 sock_ioctl+0x313/0x690 net/socket.c:1075 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0x1de/0x1720 fs/ioctl.c:685 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:702 __do_sys_ioctl fs/ioctl.c:709 [inline] __se_sys_ioctl fs/ioctl.c:707 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:707 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457579 Code: Bad RIP value. RSP: 002b:00007fc7523dac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457579 RDX: 0000000020000100 RSI: 0000000000008914 RDI: 000000000000000a RBP: 000000000072c0e0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc7523db6d4 R13: 00000000004c2251 R14: 00000000004d3240 R15: 00000000ffffffff INFO: task syz-executor3:12278 blocked for more than 140 seconds. Not tainted 4.19.0-rc5-next-20180928+ #84 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor3 D23032 12278 6147 0x00000004 Call Trace: context_switch kernel/sched/core.c:2830 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3479 schedule+0xfe/0x460 kernel/sched/core.c:3523 exp_funnel_lock kernel/rcu/tree_exp.h:319 [inline] _synchronize_rcu_expedited.constprop.58+0x87b/0x970 kernel/rcu/tree_exp.h:620 synchronize_rcu_expedited+0x27/0xa0 kernel/rcu/tree_exp.h:758 synchronize_net+0x3b/0x60 net/core/dev.c:9013 netif_napi_del+0x3c7/0x540 net/core/dev.c:6200 tun_napi_del drivers/net/tun.c:335 [inline] __tun_detach+0x291/0x15c0 drivers/net/tun.c:693 tun_detach drivers/net/tun.c:745 [inline] tun_chr_close+0xe3/0x180 drivers/net/tun.c:3378 __fput+0x3bc/0xa70 fs/file_table.c:279 ____fput+0x15/0x20 fs/file_table.c:312 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop+0x318/0x380 arch/x86/entry/common.c:166 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x411051 Code: Bad RIP value. RSP: 002b:00007ffe70e44c60 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000007 RCX: 0000000000411051 RDX: 0000000000000000 RSI: 0000000000732468 RDI: 0000000000000006 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 00007ffe70e44b80 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000001 R14: 00000000000002e9 R15: 0000000000000003 INFO: task syz-executor3:12279 blocked for more than 140 seconds. Not tainted 4.19.0-rc5-next-20180928+ #84 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor3 D23544 12279 6147 0x00000004 Call Trace: context_switch kernel/sched/core.c:2830 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3479 schedule+0xfe/0x460 kernel/sched/core.c:3523 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3581 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0xbe7/0x1700 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 rtnl_lock+0x17/0x20 net/core/rtnetlink.c:77 dev_ioctl+0x5c6/0xcc0 net/core/dev_ioctl.c:441 sock_do_ioctl+0x1f6/0x420 net/socket.c:974 sock_ioctl+0x313/0x690 net/socket.c:1075 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0x1de/0x1720 fs/ioctl.c:685 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:702 __do_sys_ioctl fs/ioctl.c:709 [inline] __se_sys_ioctl fs/ioctl.c:707 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:707 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457579 Code: Bad RIP value. RSP: 002b:00007f158d086c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457579 RDX: 0000000020000380 RSI: 0000000000008923 RDI: 000000000000000d RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f158d0876d4 R13: 00000000004c1fa1 R14: 00000000004d2da8 R15: 00000000ffffffff INFO: task syz-executor3:12301 blocked for more than 140 seconds. Not tainted 4.19.0-rc5-next-20180928+ #84 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor3 D22744 12301 6147 0x80000004 Call Trace: context_switch kernel/sched/core.c:2830 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3479 schedule+0xfe/0x460 kernel/sched/core.c:3523 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3581 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0xbe7/0x1700 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 rtnl_lock+0x17/0x20 net/core/rtnetlink.c:77 ip_tunnel_init_net+0x3e2/0xac0 net/ipv4/ip_tunnel.c:1028 erspan_init_net+0x29/0x30 net/ipv4/ip_gre.c:1656 ops_init+0x101/0x560 net/core/net_namespace.c:129 setup_net+0x3cf/0x950 net/core/net_namespace.c:314 copy_net_ns+0x2b1/0x4a0 net/core/net_namespace.c:437 create_new_namespaces+0x6ad/0x900 kernel/nsproxy.c:107 unshare_nsproxy_namespaces+0xc3/0x1f0 kernel/nsproxy.c:206 ksys_unshare+0x79c/0x10b0 kernel/fork.c:2539 __do_sys_unshare kernel/fork.c:2607 [inline] __se_sys_unshare kernel/fork.c:2605 [inline] __x64_sys_unshare+0x31/0x40 kernel/fork.c:2605 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457579 Code: Bad RIP value. RSP: 002b:00007f158d044c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000457579 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000 RBP: 000000000072c040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f158d0456d4 R13: 00000000004c4f29 R14: 00000000004d8478 R15: 00000000ffffffff INFO: lockdep is turned off. NMI backtrace for cpu 0 CPU: 0 PID: 981 Comm: khungtaskd Not tainted 4.19.0-rc5-next-20180928+ #84 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1d3/0x2c4 lib/dump_stack.c:113 nmi_cpu_backtrace.cold.4+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1c2/0x22c lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_all_cpu_backtrace include/linux/nmi.h:144 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:204 [inline] watchdog+0xb39/0x1050 kernel/hung_task.c:265 kthread+0x35a/0x440 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at native_safe_halt+0x6/0x10 arch/x86/include/asm/irqflags.h:57